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Logos and Icons

W3C makes available a number of logos for technologies it produces as well as for W3C as an organization, for W3C Members, and a few others. We invite you to use the logos to show your support for standards. There are a few conditions for using specific logos; see below or on other pages that list logos.

In most cases, W3C logos and icons may
be used without requesting permission from W3C. When the
logo usage policy requires that you obtain express written permission, please
send your request to the W3C Communications Team (w3t-pr@w3.org).
See below for:

Members of the World Wide Web Consortium are authorized and
encouraged to display this icon on their products, packaging and
literature, provided that no implication of endorsement of products
by W3C is made.

An organization that is not a W3C Member but is the
subsidiary of a W3C Member may also use the "W3C Member" logo
when indicating its (subsidiary) relationship to a W3C
Member. The subsidiary must not misrepresent its Membership
status when using the logo.

When used on the Web, the icon must be an active link to
http://www.w3.org/.

Can I change a W3C logo to fit the look and feel
of my site?

No. The W3C Logo provides the organization with its visual identity. As a
result, there are strict rules for its use. Changing the W3C logos is not
permitted, as it defeats the purpose of the logo, which is to be noticed and
identified as W3C.

Can I use an image in a link to the W3C Web
site (e.g., to the W3C validator) that is not derived from the W3C logo?

Yes, you may link to the W3C site with images that are not derived from
the W3C logo.

I saw the "valid" icon displayed on a site but the page is invalid. What should I do?

We recommend that you write to the site manager and politely bring to that person's attention that there is an inconsistency. Please note that W3C does not verify or attempt to enforce validity claims.

May I serve a copy of the logo from my own site?

Yes. You may create local copies of these logos at your site or include by
reference the versions at the W3C site. If you make local copies, you should
check periodically for updates from W3C (e.g., to account for small changes
or new formats).